Standard Lemma guide

geas

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ɡɛʃ/
  • /ˈɡiː.əʃ/
  • rhymes with -ɛʃ

1

noun

Meaning 1

A (generally magical) vow, obligation or injunction placed upon someone to do or not do something, which typically brings harm if violated and blessings if obeyed.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A mystical compulsion.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Borrowed, like English geis, from Irish geis (“injunction; taboo, prohibition, spell”). The pronunciation resembles Irish geis, though the spelling matches its synonymous but heterophonous alternative form geas.